Well i have special knowledge of the prey animals. they are grazers and designed to extract the max nutrients out,of low energy foods like grass hays and often have guts more like cows and other ruminants to do so. but they have been designed to work best on this type of food intake. their guts are more delicate than humans/ominvores straight shot through difestive systems.
My point was that the predator animals need more than just the raw meat. They also need the digested gut contents, the inner meats, and the enzymes and microorganisms produced by the prey animals in their guts. A zoo in India was so proud of their new lion they feed it only meat and it was getting sick. Then a zoo specialist said they should feed it whole animals, like goats, and it became healthy again.